Searching for the location of risky or unpleasant objects is becoming increasingly difficult task. Slovenia is for the number of years now in the process of search for the location of the low and intermediate waste (LILW) repository. Social acceptability of this facility is currently the main problem in this search. Efforts in this direction are presented in all its diversity, with weaknesses and successes, addressing also the context of the whole process, but especially considering different aspects of public participation.

The investigation consists of three parts and shall provide an input to the – empirical – PTA-2 study to be undertaken by SCK•CEN (called “lens”):<br>A. Compilation of – selected – existing PTA methods and procedures identifying requisites, practices, benefits, and challenges to answer the key questions in the context of WP1 about a PTA “toolbox”: “What can you apply, when can you apply, and what is needed to apply?” The multi-dimensional context of a possible “PTA situation” is analysed; suitable and nonsuitable methods, techniques and procedures are discussed.<br>B.

During the 1990s, nuclear waste programmes in nearly every concerned country met many difficulties. Nuclear waste management was seen as a technical issue, and the local communities were only involved in the last stage of the decision-making process when almost all components of the decision were already fixed. The management of high level radioactive waste is now recognised as a complex decision-making process entailing technical, ethical, social, political and economic dimensions where no solution can be reached solely on the basis of technical considerations.

Long-term radioactive waste management (RWM) involves large and long-term research and development programmes in essentially all countries with civil nuclear programmes. Such programmes develop through different phases from basic research to more focussed applied research and development (R&D) and finally to the design and siting of proposed solutions. Internationally basic principles for the conduct of these programmes, basic safety principles and guidance on how to comply with them have largely been agreed upon.

Public hearings were held in the Swedish municipalities of Östhammar, Tierp and Älvkarleby, Hultsfred and Oskarshamn and in Nyköping in February of 2001. The municipalities had taken part in feasibility studies, conducted by the Swedish Nuclear Fuel and Waste Management Co. (SKB), in the previous years. The hearings were organised by the Swedish regulatory authorities, i.e. the Swedish Nuclear Power Inspectorate (SKI) and the Swedish Radiation Protection Authority (SSI) and aimed at complementing the authorities’ reviews of SKB’s work and plans.